# SDR 66603

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 8, 2004
- Submitted: November 18, 2004
- Operation: Air carrier
- Aircraft: N139ZV
- Make and model: Beech 1900D
- Registry model: [Beech 1900D](https://openairdocs.org/model/beech-1900d) (OpenAirDocs)
- Aircraft serial: UE139
- Aircraft time: 20,538 hours, 27,960 cycles
- System (JASC): [3242 · Brake](https://openairdocs.org/jasc/3242)
- Part: Master Cylinder
- Part number: 9038000133
- Part serial: 3273
- Condition: Failed
- Location: Brakes
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/66603

## Discrepancy

UPON TAXI IN, CAPT EXPERIENCED RT BRAKE PERFORMANCE SPONGY, A/C CONTINUED TO GATE/HANGAR WITH NO FURTHER INCIDENT.  REMOVED AND REPLACED CAPT'S RT BRAKE MASTER CYLINDER AND BLED BRAKES.  OPS CK NORMAL P/N 90-380001-33 S/N 3273 P/N 90-380001-33 (OFF) S/N 3123 (OFF)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
